Band-wheel scraper.



UNI-TED e STATES f Patented June 9, 1903.

" PATENT OFFICE.

BAN DA-wH EEL s-C RAPER.

l SPECIFICATIGN forming part of Letters Patent No. 730,419, dated J une 9, 1903.

Application tiled December 8, 1902. Serial No. 134.367. (No model.) Y

To all, wiz/071e it may con/cern:

Be it known that I, JAMES TWEEDIE, a subject of the King of Great Britain, residing at Rockland, in the county of Russell and Province of Ontario, Canada, have invented certain new and useful Improvements in Bandi NVheel Scrapers, of which the following is a specification.

This invention relates to improvements in band-wheel Scrapers, and has for its object a new and improved construction of scraper to be used in sawmills and other desirable places to keep the band-wheel clean of sawdust and grit, while at the same there is as little friction as possible caused between the contact of the band-Wheel and the scraper.

Another object of myinventon is the provision of a simple and durable construction of band-wheel scraper which is thoroughly eiiicient and practical in use.

To attain these objects, the invention consists of a baud wheel scraper embodying novel features of construction and combination of parts,subst antially as disclosed herein.

In the accompanying drawings, vFigure 1 is a side elevation of the complete scraper.

Fig. 2 is a longitudinal sectional View throughl the shaft carrying the scraper; and Fig. 8 is an end view of the scraper, showing its relative position to a band-Wheel.

Referring to the drawings,.the numeral l designates a base-plate, which is secured to the desired place by means of a bolt passing through the central opening 2 of the base. Secured to and projecting above the baseplate are the two standards 3, Which are provided With alined bearings 4 to receive the ends 5 and 6 of the shaft 7. The portion of the shaft adjacent to the end 6 is smooth and has mounted thereon loosely a coiled spring 8, whose outer end 9 is secured rigidly to one of the standards, While its other end 10 is mounted in an opening 11 in the .nut 12, which is adjustably mounted uponthe threads 13 on the shaft. In order to hold this nut, and consequently the .spr-ing, at the proper adjustment, I provide a lock-'nut 14. I produce a cut-away portion 15 upon the shaft adjacent to the end 5 and provide the openings 16 therethrough for the reception of the lock-bolts 17, which pass through the openings 18, for-med in the reduced inner edge of Vedge of the scraper.

vtion of the band-Wheel.

the scraper-blade 19, the shoulders 2O of the scraper-blade being substantially parallel with the smooth portion of the shaft.

From the foregoing description, taken in connection with the drawings, it will be seen that the spring Will always be adjusted to have a yielding tension` toward the periphery of the band-wheel 21, (clearly shown in Fig. 3 of the drawings,) and as the outer edge 22 of the scraper is beveled anything that may cling to the band-wheel is readily removed or scraped from the band-Wheel as the said wheel revolves in contact with the cutting By means of the locknnt and adjusting-nut the tension of the spring may be varied so as to cause the scraper-blade to loosely or tighlly'engage the periphery ofthe band-'Wheehas necessity may require.

'From the foregoing description it is evident that l provide an improved form of band-wheel Scrapers, which by reason ot' heing secured by means of a collar-bolt in the center of the base will be permit-ted to tilt somewhat and Aalways follow the exact ino- The base of the scraper can alsohe secured in any desired position so that the motion of the wheel will not have to twist the scraper'` o It is evident that l provide a band-wheel scraper `Jrhich is the embodiment of sin plicity, durability, and inexpensiveness.

What I claim as new isl. In a band-wheel scraper, the combina tion of a base, provided with a centrally-arranged opening to allow the same to be pivotally secured to a suitable support, brackets secured to and projecting upward from the base, said brackets being provided with alined bearings, a shaft having reduced ends tiltingly jourualed within the alined bearings of the brackets, said shaft being provided with a long flattened portion and a short rounded portion, a coil-spring surrounding the rounded portion' having one end connected to one of the brackets, a pair of lock-nuts mounted upon the shaft opposed to the opposite end of the spring, one of said nuts having the said opposed end of the spring secured therein, and a scraper detachably se- IOO cured to one portion of the shaft and held in y Contact with the band-Wheel by said spring.

of the brackets, said shaft being *provided With a long attened portion and a short rounded portion, a coil-spring surrounding the rounded portion having one end connected to one of the brackets, a pair of lock-nuts mounted upon the shaft opposed to the opposite end of the spring, one of said nuts having the said opposed end of the spring secured therein, a scraper adapted to have one end projecting upward above the shaft and the other end alinedfwith the shaft, and bolts for securing the scraper to the fiat portion of ythe shaft.

In testimony whereof I afx my signature in presence of'two witnesses.

JAMES TWEEDIE.

Witnesses:

HORACE M. SANFORD, JosEPHINE ODoNAHoE. 

